Results 71 to 80 of about 13,979 (205)

Potential Invasive Indo‐Pacific Acropora in a Coral Reef of Venezuela: A Contribution to Their Morphological and Molecular Knowledge

open access: yesEcology and Evolution, Volume 16, Issue 3, March 2026.
We report the first record of a non‐native hermatypic coral in Venezuela, exhibiting biological traits characteristic of invasive species. The coral is a member of the genus Acropora (Scleractinia: Acroporidae), native to the Indo‐Pacific. This non‐native petrous coral occurred in a reef of the Morrocoy National Park, in the southern Caribbean.
Estrella Y. Villamizar G.   +9 more
wiley   +1 more source

Depth‐structured sponge assemblages offer limited evidence for mesophotic refuge potential under the deep reef refuge hypothesis

open access: yesEcography, Volume 2026, Issue 3, March 2026.
Temperate mesophotic ecosystems (TMEs) have the potential to act as climate refugia for shallower benthic species impacted by environmental change. However, the extent to which mesophotic ecosystems might provide an ecological refuge, particularly for key functional groups like sponges, remains poorly known in temperate systems.
Manon Broadribb   +2 more
wiley   +1 more source

Marine-Derived 2-Aminoimidazolone Alkaloids. Leucettamine B-Related Polyandrocarpamines Inhibit Mammalian and Protozoan DYRK & CLK Kinases

open access: yesMarine Drugs, 2017
A large diversity of 2-aminoimidazolone alkaloids is produced by various marine invertebrates, especially by the marine Calcareous sponges Leucetta and Clathrina.
Nadège Loaëc   +16 more
doaj   +1 more source

Untargeted Metabolomics Reveals Seasonal and Tissue‐Specific Metabolic Shifts in Holothuria cinerascens

open access: yesChemistry &Biodiversity, Volume 23, Issue 2, February 2026.
Untargeted metabolic profiling of three body tissues from Holothuria cinerascens in South Africa using 1H‐NMR and UPLC–QTOF–MS revealed distinct tissue‐specific and seasonal metabolic variations, with the body wall and gut/mesentery exhibiting high metabolite diversity.
Cassandra Upton   +3 more
wiley   +1 more source

Carbonate sedimentology: An evolved discipline

open access: yesThe Depositional Record, Volume 12, Issue 1, February 2026.
Abstract Although admired and examined since antiquity, carbonate sediment and rock research really began with Charles Darwin who, during a discovery phase, studied, documented and interpreted their nature in the mid‐19th century. The modern discipline, however, really began after World War II and evolved in two distinct phases.
Noel P. James, Peir K. Pufahl
wiley   +1 more source

Ascidian Mitogenomics: Comparison of Evolutionary Rates in Closely Related Taxa Provides Evidence of Ongoing Speciation Events

open access: yesGenome Biology and Evolution, 2014
Ascidians are a fascinating group of filter-feeding marine chordates characterized by rapid evolution of both sequences and structure of their nuclear and mitochondrial genomes.
F. Griggio   +9 more
semanticscholar   +1 more source

Natural Products in Cancer Prevention and Therapy: Current Challenges and Future Directions

open access: yesMedComm, Volume 7, Issue 2, February 2026.
Natural products play a pivotal role in cancer therapy. They induce cancer cell death by reprogramming four metabolic pathways while precisely targeting the tumor microenvironment and immune cells. These compounds not only leverage novel delivery systems for innovative applications but also demonstrate unique therapeutic efficacy across clinical stages:
Ruimiao Qian   +8 more
wiley   +1 more source

Genetic perspectives on the ascidian central nervous system [PDF]

open access: yesInvertebrate Survival Journal, 2009
In 2002, date of publication of the Ciona intestinalis genome, ascidians entered the post-genomic era. This tool had a fundamental role and has become the starting point for a series of new functional and genomic studies.
A Locascio   +4 more
doaj   +1 more source

Invertebrate Biodiversity Associated With a Unique Bryozoan Biogenic Reef Complex (Western Port, Victoria, Australia)

open access: yesAustral Ecology, Volume 51, Issue 2, February 2026.
ABSTRACT A unique biogenic bryozoan reef has been recently discovered in Western Port (a temperate embayment), Victoria, Australia. This reef is significant owing to its contiguous, regular, linear rows of densely stacked bryozoan colonies with large vertical relief. We aimed to (1) document the biodiversity of the macroinvertebrate epifauna associated
Nicki K. Wilson   +3 more
wiley   +1 more source

Protostigmata in ascidians [PDF]

open access: yesProceedings of the Royal Society of London. Series B, Containing Papers of a Biological Character, 1913
It has been showed that at a certain stage in the ontogeny of Ascidians there is usually a definite number of stigmata or gill slits, which are elongated dorsorventrally and arranged in a longitudinal series on each side of the pharynx. To these the name protostigmata was given by Garstang in 1892.
openaire   +1 more source

Home - About - Disclaimer - Privacy